Here is a 3D video of a whale shark feeding at the surface during a huge whale shark aggregation in Isla Mujeres, Mexico. I shot it on August 15, 2011, using a [GoPro 3D HERO System](http://gopro.com/3D) and an [Eye of Mine 3D flat lens housing](http://www.eyeofmine.com/gopro/order-gopro-hero.html#euwl3d) (a flat-lens solution is required for a GoPro to focus properly underwater).
The video is best viewed at 720p in some sort of 3D mode.

If you own a 3D display at home, you can [download a higher-quality side-by-side version](https://www.yousendit.com/download/ZUd2K0d1ZDVBNkUwTVE9PQ) for local display (~99MB; link is good for 500 downloads; if it fails, please [let me know](/contact)). The downloadable video is still highly-compressed and doesn't quite convey the same 3D coolness that original version does, but it is still effective!